/**
 * NavigationBar
 */
import React, {Component} from 'react';

import {PixelRatio, Platform, StyleSheet, Text, View, ViewPropTypes} from 'react-native';
import PropTypes from 'prop-types';
import {NAV_BAR_HEIGHT_ANDROID, NAV_BAR_HEIGHT_IOS, STATUS_BAR_HEIGHT, windowWidth} from '../../configs/platform';

const StatusBarShape = {
    barStyle: PropTypes.oneOf(['light-content', 'default',]),
    hidden: PropTypes.bool,
    backgroundColor: PropTypes.string,
};
export default class NavigationBar extends Component {
    static propTypes = {
        style: ViewPropTypes.style,
        title: PropTypes.string,
        titleView: PropTypes.element,
        titleLayoutStyle: ViewPropTypes.style,
        hide: PropTypes.bool,
        statusBar: PropTypes.shape(StatusBarShape),
        rightButton: PropTypes.element,
        leftButton: PropTypes.element,
        closeButton: PropTypes.element,

    }
    static defaultProps = {
        statusBar: {
            barStyle: 'light-content',
            hidden: false,
            backgroundColor: "white",
        },
    }

    constructor(props) {
        super(props);
        this.state = {
            title: '',
            hide: false,
            statusbarHeight: 0,
        };
    }

    componentDidMount() {

        if (Platform.OS === 'ios') {
            this.setState({
                statusbarHeight: 0
            })
        }
    }

    getButtonElement(data) {
        return (
            <View style={styles.navBarButton}>
                {data ? data : null}
            </View>
        );
    }

    render() {
        let titleView = this.props.titleView ? this.props.titleView :
            <Text ellipsizeMode="head" numberOfLines={1} style={[styles.title]}>{this.props.title}</Text>;

        let content = this.props.hide ? null :
            <View style={styles.navBar}>
                <View style={{flexDirection:"row"}}>
                    {this.getButtonElement(this.props.leftButton)}
                    {this.getButtonElement(this.props.closeButton)}
                </View>
                <View style={[styles.navBarTitleContainer, this.props.titleLayoutStyle]}>
                    {titleView}
                </View>
                {this.getButtonElement(this.props.rightButton)}
            </View>;
        return (
            <View style={[styles.container, this.props.style, {marginTop: this.state.statusbarHeight}]}>
                {content}
                <View style={{height: 1 / PixelRatio.get(), width: windowWidth, backgroundColor: '#EEEEEE'}}/>
            </View>
        )
    }
}

const styles = StyleSheet.create({
    container: {
        backgroundColor: '#ffffff',
    },
    navBar: {
        flexDirection: 'row',
        alignItems: 'center',
        justifyContent: 'space-between',
        height: Platform.OS === 'ios' ? NAV_BAR_HEIGHT_IOS : NAV_BAR_HEIGHT_ANDROID,
    },
    navBarTitleContainer: {
        alignItems: 'center',
        justifyContent: 'center',
        position: 'absolute',
        left: 80,
        top: 0,
        right: 80,
        bottom: 0,
    },
    title: {
        fontSize: 18,
        color: '#333333',
        fontWeight: "bold"
    },
    navBarButton: {
        alignItems: 'center',
        // marginLeft:10,
        width:45,
    },
    statusBar: {
        height: STATUS_BAR_HEIGHT,
    },
})
